Improvement in valves for pumps



Jn'rrnn STATES ROSCQE J. GOULD, OF NEWARK, NEV JERSEY.

`IMPRVENIN'T iN VALVES FOR PUMPS.

Specification forming part of Letters Patent No. 157,963, dated December Q2, 1874; application filed November 19, 1874.

To all whom it may concern Be it known that I, R. J. GOULD, of New, ark, in the State of New Jersey, have invented certain Improvements Relating to Valves for Pumps and Analogous Situations, of which the following is a specification:

The valve is more particularly intended for use in steam fire-engines, where a quick action and very heavy pressure are employed, but may be used with advantage in many other situations.

I construct a ring-valve substantially of metal, but with a packing or narrow bearingsurface of elastic material projecting a little beyond the face, and very securely united to the valve, so as to form a part thereof. When the valve is lifted the water passes freely both on the inner and outer edge. The ring works as a puppet-valve, and is guided by four or other number of narrow arms or webs reaching inward from the valve to be guided by a stem, which latter may be fixed on the seat. As I apply the valve in steam lire-engines I have a removable seat, and a stout head on the guiding post or pin set therein, which serves as an abutment for a coiled spring of hard brass or other suitable material.

The following is a description of what I consider the best means of carrying out the invention.

The accompanying drawings form a part of this specification.

Figure 1 is a plan view of the valve, with its seat, guiding-stein, and spring complete, a portion of the valve being cut away to show the seat. Fig. 2 is a central vertical section through the same parts. Fig. 3 is a plan view from below.

Similar letters of reference indicate like parts in all the figures.

A is the lower portion, and A1 the central portion, of a seat, which is formed with a screw-thread on its exterior, adapting it to be inserted in a correspondingly-threaded aperture in the pump. (Not represented.) Narrow webs or arms connect the rim A with the center A1. B is a ring, of brass or other strong and hard material7 of a sufficient width to cover the annular water-space between the' parts A and A1. B1 is a wider ring; and b are screws, which fix the rings B and Bl in the positions represented. C is a ring of vulcanized rubber, held firmly between the rings B and B1, and presenting its lower edges to touch on the parts A and A1, respectively, when the valve comes to its seat. B2 are arms, extending inward from the part B1, and touching lightly the sides of a fixed pin, A2, which is set in the part A1, and has a head, A3, formed with an offset, as represented, and adapted to serve as an abutment for a coiled spring, D, which presses on the outer surface of the ring B1. 4

In the use of the valve nearly the entire annular space between the parts A and A1 is available for the active flow of the water when the valve is lifted, the current dividing to pass the valve, a portion passing inwardly and up through the aperture between the valve and the stem A2, while another and larger portion passes up outside of the valve. I refer, as the valve, to the compound ring formed by the parts B B1 b, with the rubber packing G and guides B2, or some suitable guiding means, equivalent in effect to the arms B2, which latter are deep but narrow, so as to offer but little resistance to the movement of the water.

The valve can rise until the arms B2 strike the under side of the head A3. The coiled spring D stands within, in a volute form, with its coils nearly in a plane. When the valve closes the spring D assumes a conical form, as indicated. In striking its seat the rubber packing C touches the scat rst, and is compressed or driven upward a little, after which the metal part B strikes and bears firmly. I

`consider this metal as performing the main flexible packing on its edge, adapted to serve therewith as and for the purposes herein specilied.

2. The annular-formed valve B Bl b and my hand this 17 th day of November, 1874, in guiding means B2 A2, in combination with the the presence of two subscribing Witnesses. seat A A1, having an annular water-passage and a rubber packing-ring, C, secured sub- ROSGOE J GOULD' stnntially in the manner and for the purposes W'itnesses: specified.

WM. C. DEY, M. VAN NAMEE.

In testimony whereof I have hereunto set 

